Fungicide spraying and PVC (polyvinyl chloride) wrapping were carried out for the improvement of storage yield in winter kimchi cabbage. Acetic acid, rox, tebuconazole and fludioxonil were sprayed on the cabbage, and then cabbage boxes were wrapped with 0.02 mm polyvinyl chloride film. The weight loss ratio of wrapped cabbages were 8.62% and 15.71% in unwrapped cabbages. Trimming loss ratio was the lowest in the mixed treatment of acetic acid, rox and tebuconazole in wrapped cabbage. Physiological disorders of 90-day stored cabbage was better in wrapped cabbage, especially with the mixed treatment of acetic acid, rox and tebuconazole. Wrapping and fungicide treatment reduced the storage loss ratio and physiological disorder for storage of kimchi cabbages.

A packaging company is designing reusable multi-folding plastic box with RFID function. They want to identify material flow and inventory status of multi-folding box by adapting RFID technology and reallocate the boxes to required distribution centers. This reusable box may contain various types of materials such like liquids, metals, farm products and so on. Recently, RFID technology has been widely applied in the industrial fields, especially in logistics. However, RFID technology has some problems. One of the problems is that it doesn't guarantee the RFID recognition with environment of metals and liquids. We cannot overlook this fact because the contents of box is not fixed and may contain various kinds of materials. The purpose of this research is to analyze the influence of unspecified contents on the RFID detectability of reusable multi-folding box and predict the reading rate on various conditions. At first, we selected a list of test materials from expert interview and literature survey and performed experimental design to investigate influence by materials. Then, we built a prediction model using support vector machine (SVM) to predict reading rate on various conditions. The proposed model is based on intelligent machine learning algorithm. It gave a high accuracy of prediction, and provided robust combinations of conditions as to detectability on various contents. Finally, we performed sensitivity analysis about marginal detectability of influencing factors and found out tolerable level of factors.

The aim of this study was to develop a standard to estimate safety factors of corrugated fiberboard containers used for agricultural products. This study is limited to fresh agricultural products packaged in the corrugated fiberboard containers and further work needs to be done, but we believe the data and results obtained by this research will greatly help to set proper package design for boxes. Especially, safety factor would be practically helpful for researchers for future study and packaging users to save packaging costs.

본 연구는 일정한 실험조건 하에서 골심지 시료에 따른 골 성형 실험을 행하여 골심지에 의한 하이로골의 발생과 골판지상자의 압축강도의 관계에 대하여 조사하였다. 골판지의 골 높이가 낮은 골(low corrugation)의 비율이 많은 골심지 그레이드는 장력 변동의 저항에도 약하며 골심지의 이탈력에 의한 강탈(stealing)이 일어나기 쉽고, 결과적으로 낮은 골 비율이 높아졌으며, 골심지 두께 편차가 큰 골심지는 골 성형 시에 슬립현상을 발생하기 쉽기 때문에 불규칙한 골을 연속 형성하는 경향이 있었다. 또한 골심지의 그레이드에 따른 하이로골 분포비율의 실험결과 일반적 경향으로는 그레이드가 높은 골심지일수록 낮은 골 비율이 적었다. 골 성형된 골판지 시트의 두께의 경우는 원지 평량과의 상관성은 적고 골심지 두께와 상관하며(y = 3.9732x+4.2712, R2 = 0.8142), 골심지의 밀도에 역상관한다(y = -3.1213x+6.8736, R2 = 0.9919). 하이로골 중에서 낮은 골 분포를 크게 나타낸 골심지 재료의 골판지로 만든 골판지상자의 압축강도가 현저히 낮고 골심지 시료의 그레이드에 따라 13%의 차이가 있었으며 압축강도의 편차도 골심지의 시료에 따라 21%로 크며, 골심지 골은 원지의 두께 및 밀도 등 물리적 특성치의 변동과 관계한다.

농산물의 저온저장 및 고습조건에서 안전하게 유통할 수 있는 골판지 포장상자를 개발하기 위하여 원지의 구성, 라이너의 발수도, 골형태의 차이에 따라 수분흡습 특성과 압축강도와의 관계를 구명하기 위해 각각 원지특성을 달리하여 이중 양면 골판지를 재료로 사용하여 시험하였다. 온도변화에 따른 골판지 함수율 변화는 골판지 원지 종류, 발수도 차이등에 관계없이 거의 일정한 값을 나타냈다. 상대습도 변화에 따른 골판지의 함수율 변화는 상대습도에 크게 영향을

예냉저온유통에 적합한 배추포장상자를 개발하기 위하여 3∼4포기를 담을 수 있는 골판지 포장상자를 T11형 KS 표준 팔레트에 적재율이 96%이상이 되도록 제작하여 상자 구조별로 수직압축강도, 배추의 냉각속도 및 냉각균일도, 배추의 품질변화를 측정하고 비교하였으며 그 결과를 요약하면 다음과 같다. 가. 배추의 저온유통에 사용하는 골판지포장상자는 개공율을 5.4%로하고, 포장상자 형태를 접음식 형태로 하는 것이 예냉속도 및 예냉균일도에서 유리하였고,

In order to improve cut-flower export packaging on the distribution process, newly developed T-type(trapezoid type) container was tested and evaluated on the viewpoints of the protection, workability, and economics. T-type container performed better in protection and workability comparing to 0201 and modified 0201 type containers. Especially, load efficiency of T-type container was 33 percent higher than others, indicating that total distribution costs from Korea to Japan can be saved up to 1.7million dollars per year. T-type container is also advantageous because of its superior display performance and environmentally friendly design. We recommend that T-type container is suitable for most of cut-flowers which are usually horizontally packed such as roses, chrysanthemums, and lilies.

The study aimed to review linerboard compositions of corrugated fiberboard boxes for Oriental melons(Cucumis melon L. var makuwa), analyzing relationships among material compositions, price, weight of boxes, theoretical compression and bursting strength of various liner boards. 19 and 22 different liner boards were currently used for the bleached and the unbleached corrugated boards, respectively. The corrugated board containers with the bleached liners were mostly used in the market although the average price was 10 percents higher than the unbleached. The average compression strength of the bleached. We strongly recommend to redesign the boxes because the average compression and bursting strength of the current boxes were much higher than national packaging standards as much as 70 and 82, respectively.

기능성 MA필름을 생산하여 이를 골판지 상자의 내부에 첩합시킨 FC상자의 활용가능성을 조사하고자 골판지 상자와 기능성 MA필름대를 골판지 상자 내부의 1면당 4곳씩 첩합시킨 FC포장구와 0.03, 0.05mm 두께의 LDPE 필름(30LD, 50LD)으로 애호박을 포장하여 2에 저장하여 품질변화를 조사한 결과, FC 상자와 30LD와 50LD 포장구는 대조구 보다는 중량 감소율이 현저히 낮았으며 Vitamin C의 함량도 대조구 보다 FC 포장구

골판지상자에 기능성 필름을 첨합한 포장상자(FC)의 배 저장 중 품질유지 상태를 조사하고자 대조구로 기존에 유통중인 골판지 상자와 0.02, 0.04mm의 LDPE필름과, 0.02와 0.04mm의 기능성MA필름(CE)에 배를 포장하여 5 C에 60일간 저장하면서 신선도 변화를 비교 고찰하였다. 중량변화는 대조구는 2.9% 감소했으며, FC, LDPE와 CE 포장구들은 1.0-0.5% 감소했다. 경도는 각 포장방법간에 차이가 없었으며 비타민C 함량

기능성 MA필름을 생산하여 이를 골판지 상자의 내부에 첨합시킨 FC상자의 활용가능성을 조사하고자 골판지 상자와 기능성 MA필름대를 골판지 상자 내부에 첨합시킨 FC포장구와 LDPE 및 기능성필름과 대조구로 골판지 상자만으로 포도를 포장하여 25 C에 저장하여 품질변화를 조사한 결과, FC 상자와 LDPE와 CE포장구는 대조구 보다는 중량감소율이 현저히 낮았으며 비타민C의 함량도 33% 높게 유지되고 있었다. 산도와 환원당 함량은 포장구들간에는 큰

In order to find effective linerboard compositions for the corrugated fibreboard containers for apples, we have evaluated the strength and the cost effectiveness of the various linerboards and corrugated fibreboard containers. From the results, we suggest SC240, WLK210 or SK180 for the outer liners, M180 to M250 for the mediums, and K2200 or Al80 for the inner liners, respectively. Furthermore, we recommend two cost effective types of corrugated fibreboard compositions, SC240/S120/S120/M160/A180 for the white face liners, and SK180/M180/S120/M180/A180 for the color face liners. Evidence has been presented to support the conclusion that the new high compression strength corrugated fibreboard containers have better performance in the compression and bursting strength tests, while reducing material costs by thirty four percents.

The compression strength of the corrugated fiberboard boxes is very important information to the manufacturers and the end users. The computer program being used to design the compression strength of the boxes was developed by using Korean Standards for the corrugated fiberboard box and some other data. The developed computer program could be applied to only the boxes produced according to the Korean Standards. Also this program needs to be revised continuously by the newly added and developed data.